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Guide
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__SetEvents

Introduction

Sets event listeners for a specific Element node.

Syntax

__SetEvents(element: Element, listeners: Array<Record<string, any>>) : void;

Parameters

Key Description
element Any Element object.
listeners An array of listeners that describes the event listeners to add. Each element is a map that represents a specific event listener and must contain the following three keys:
  • type: A case-sensitive string representing the event type to listen for.
  • name: A case-sensitive string representing the event name to listen for.
  • function: The function can be a case-sensitive string or null/undefined.
    • When the function is a case-sensitive string, the Lynx SDK will send the current Element's parentComponentUniqueID, function, and event to the background thread to call the corresponding entry function when the event is triggered.
    • When the function is null or undefined, the Lynx SDK will remove the corresponding listener based on the type and name from the Element object's listeners.

Return Value

No return value.

Example

The frontend framework can generate render instructions as follows.

<view src="xxx" bindtap="onTap" />
// main-thread.js
let element = __CreateElement('view', 0, {});
__SetAttribute(element, 'src', 'xx');

__SetEvents(element, [{ type: 'bindEvent', name: 'tap', function: 'onTap' }]);
Except as otherwise noted, this work is licensed under a Creative Commons Attribution 4.0 International License, and code samples are licensed under the Apache License 2.0.